Check the appropriate box below
if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

¨

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

On January 28, 2013, NewMarket Corporation (the Company) issued a press release regarding its earnings for the year ended December 31, 2012. A copy of this press release is furnished
as Exhibit 99.1 hereto and incorporated herein by reference.

In accordance with General Instruction B.2 of Form 8-K, the
information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed filed for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the
liability of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01. Financial Statement and Exhibits

(d)

Exhibits.

99.1

Press release regarding earnings issued by the Company on January 28, 2013.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: January 28, 2013

NEWMARKET CORPORATION

By:

/s/ David A. Fiorenza

David A. Fiorenza

Vice President and Chief Financial Officer

Exhibit Index

ExhibitNo.

Description

99.1

Press release regarding earnings issued by the Company on January 28, 2013.

Newest 8-K & 10-Q Forms

Site Links

Based on public records. Inadvertent errors are possible. Getfilings.com does not guarantee the accuracy or timeliness of any information on this site. Use at your own risk.
This website is not associated with the SEC.